78825040

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{140759}}^1$

素因数の和:140779

約数の個数: 40

約数和(自身を含む): 209450880

約数和(自身を除く): 130625840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 140759, 281518, 563036, 703795, 985313, 1126072, 1407590, 1970626, 2252144, 2815180, 3941252, 4926565, 5630360, 7882504, 9853130, 11260720, 15765008, 19706260, 39412520, 78825040]

約数ペア:

[(1, 78825040), (2, 39412520), (4, 19706260), (5, 15765008), (7, 11260720), (8, 9853130), (10, 7882504), (14, 5630360), (16, 4926565), (20, 3941252), (28, 2815180), (35, 2252144), (40, 1970626), (56, 1407590), (70, 1126072), (80, 985313), (112, 703795), (140, 563036), (280, 281518), (560, 140759)]